We divide 863215 by 1
We want to divide 863215 by 1.

Let's proceed to step 1:
When dividing 8 by 1, we get 8 with a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we take 8 away from 8, we end up with 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 1

On to step 2:
1 can be fit into 6 6 times, resulting in a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 86.0
Deduct 6 from 6 and we're left with 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 1

Let's proceed to step 3:
3 divided by 1 is 3 with a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 863.0
The remainder is 0 after subtracting 3 from 3.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 1

Advancing to step 4:
If we divide 2 by 1, we get 2 and a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 8632.0
If we take 2 away from 2, we end up with 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 1

Moving on to step 5:
1 divided by 1 is 1 with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 86321.0
Subtracting 1 from 1 leaves us with 0.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 1

Going ahead to step 6:
1 can be fit into 5 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 863215.0
If we subtract 5 from 5, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
0 divided by 1 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 863215.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
1 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 863215.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 863215.0 with a balance of 0.0.